2a+40=2(4a+5)

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Solution for 2a+40=2(4a+5) equation: 



2a+40=2(4a+5)

We move all terms to the left:

2a+40-(2(4a+5))=0



We calculate terms in parentheses: -(2(4a+5)), so:

2(4a+5)

We multiply parentheses

8a+10

Back to the equation:

-(8a+10)



We get rid of parentheses

2a-8a-10+40=0

We add all the numbers together, and all the variables

-6a+30=0

We move all terms containing a to the left, all other terms to the right

-6a=-30

a=-30/-6

a=+5

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